Nested Collection

UITableViewCell can contain nested UICollectionView and RxDataSourcesExt let you process it in minimalistic way. To achieve it you need to create view model that implements NestedCollectionTableCellViewModel protocol

struct EmbedCollectionCellViewModel: NestedCollectionTableCellViewModel {

    typealias TableCellType = EmbedCollectionCell

    let id: String
    let nestedSections: [CollectionSectionModel]
    let rowHeight: CGFloat = 72
}

And UITableViewCell that implements CollectionContainableCell

class EmbedCollectionCell: UITableViewCell, ConfigurableCell, CollectionContainableCell {

    let collectionView = UICollectionView()

    var disposeBag = DisposeBag()

    func configure(with viewModel: EmbedCollectionCellViewModel) {}

    override func prepareForReuse() {
        super.prepareForReuse()
        disposeBag = DisposeBag()
    }
}

For processing events in a nested collection view TableDirector has some methods similar to func cellCreated() (see Events in Cells for details).

director.rx.nestedViewModelSelected(StringCollectionCell.self, in: EmbedCollectionCell.self)
    .subscribe()
    .disposed(by: disposeBag)

director.rx.nestedCellCreated(ButtonCollectionCell.self, in: EmbedCollectionCell.self) { $0.button.rx.tap }
    .subscribe()
    .disposed(by: disposeBag)